import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'

/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * 路由配置：
 * 1. 路由配置，加载哪些路由组件
 * 2. 左侧菜单就是通过constantRoutes来生成的
 */
// 不需要权限就能直接访问的路由
export const constantRoutes = [
  {
    path: '/login',
    component: () => import('@/views/login/index'), // 路由懒加载
    hidden: true, // 左侧菜单隐藏当前导航（左侧菜单不会显示）
    meta: { title: '登陆' }
  },

  {
    path: '/404',
    component: () => import('@/views/404'),
    hidden: true
  },

  // 首页
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        name: 'Dashboard',
        component: () => import('@/views/dashboard/index'),
        meta: {
          title: '首页', // 左侧菜单的标题
          icon: 'dashboard' // 左侧菜单的图标
        }
      }
    ]
  }
]

// 需要权限才能访问的路由
export const asyncRoutes = [
  // 商品管理
  {
    path: '/product',
    component: Layout,
    redirect: '/product/trademark/list',
    name: 'Product',
    meta: { title: '商品管理', icon: 'table' },
    children: [
      {
        path: 'trademark/list',
        name: 'Trademark',
        component: () => import('@/views/product/trademark/index'),
        meta: { title: '品牌管理' }
      },
      {
        path: 'attr/list',
        name: 'Attr',
        component: () => import('@/views/product/attr/index'),
        meta: { title: '属性管理' }
      },
      {
        path: 'spu/list',
        name: 'Spu',
        component: () => import('@/views/product/spu/index'),
        meta: { title: 'Spu管理' }
      },
      {
        path: 'sku/list',
        name: 'Sku',
        component: () => import('@/views/product/sku/index'),
        meta: { title: 'Sku管理' }
      }
    ]
  },
  // 权限管理
  {
    path: '/acl',
    component: Layout,
    redirect: '/acl/user/list',
    name: 'Acl', // 注意名称必须一致
    meta: { title: '权限管理', icon: 'user' },
    children: [
      {
        path: 'user/list',
        name: 'User',
        component: () => import('@/views/acl/user/index'),
        meta: { title: '用户管理' }
      },
      {
        path: 'role/list',
        name: 'Role',
        component: () => import('@/views/acl/role/index'),
        meta: { title: '角色管理' }
      },
      {
        path: 'role/auth/:id',
        name: 'RoleAuth',
        component: () => import('@/views/acl/role/RoleAuth'),
        meta: { title: '给角色分配菜单管理' },
        hidden: true
      },
      {
        path: 'permission/list',
        name: 'Permission',
        component: () => import('@/views/acl/permission/index'),
        meta: { title: '菜单管理' }
      }
    ]
  }
]

// 匹配任意地址 404
// 放到最后
export const anyRoute = {
  path: '*', // 匹配任意地址（除了上面地址以外的其他地址）
  redirect: '/404',
  hidden: true
}

const createRouter = () =>
  new Router({
    // mode: 'history', // require service support
    // 滚动行为：路由跳转页面滚动条的位置
    scrollBehavior: () => ({ y: 0 }),
    // 路由配置项
    routes: constantRoutes
  })

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router
